The Opteka CBW-2 is 4.6-pound
counter weight designed to stabilize and balance the CXS-300 and similar video
shoulder support rigs which use 15mm rods. The CBW-2 includes a bracket to
securely attach it to the industry standard 15mm rod system.. The CBW-2 may be
stacked with the CBW-1 (sold separately
here) to achieve the desired balance.